Mintmark: "S" (for San
Francisco) just below the wreath on the reverse

Notes:"1900-S is the last of
the three Philippine dates. Fortunately, with its high mintage over one
hundred certified unc's are available. This date is usually well struck
and has nice luster. Some examples are semi-proof-like."

The finest Uncirculated example graded
by PCGS is a single MS-67.

Sources and/or recommended
reading:
"The Complete Guide To Certified Barber Coinage" by David &
John Feigenbaum

"The PCGS Population Report, July 2003" by The
Professional Coin Grading Service